Bump electron from 6.0.11 to 6.0.12 (#30)

Bumps [electron](https://github.com/electron/electron) from 6.0.11 to 6.0.12.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](electron/electron@v6.0.11...v6.0.12)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -37,7 +37,7 @@
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
     "babel-jest": "^24.8.0",
-    "electron": "6.0.11",
+    "electron": "6.0.12",
     "eslint": "5.16.0",
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-vue": "^5.0.0",